Alarm-signal.



J. & W. H. SIDDALL.

ALARM SIGNAL.

APPLICATION FILED SEPT. I5. 1914.

Patented Oct. 31,1916.

facade 1.6 W. H. SIDDALL.

ALARM SIGNAL.

APPLICATION FILED SEPT. I5, I9I4.

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UNITED sTaTns PATENT onirica. n

JOSEPH SIDDALL AND WILLIAM H. SIDDALL, OF KEARNEY, NEW JERSEY, ASSIGNORS TO NEW JERSEY ELECTRIC PROTECTION CO., .A CORPORATION OF NEN JERSEY.

ALARM-SIGNAL.

Specification of Letters Patent.

Patented oet. 31, 1916.

To all whom t may concern Be it known that we, JOSEPH SIDDALL and lVILLLiM H. SIDDALL, citizens oi' the United States, and residents of Kearney, in the county of Hudson and State of New Jersey, have invented certain new and useful Improvements in Alarm-Signals, of which the following is a specification.

The invention relates to improvements in lire alarm signal devices and has particular reference to apparatus utilized in connection with the transmission of various sig nals, distantly or locally effective, or both, such as the transmission of a watclimans signal, the giving of a local fire alarm, the transmission of a iire signal to the central otlice of a private protection organization, or the transmission of a fire signal to the headquarters of a municipal fire department.

The object of the invention is the provision of a signal device, associated with the proper wiring, Vadapted to send from a ysingle box or a single station any one or acombination of the above signals.

It is one of the objects of this invention to provide a box of the break-the-glass type having various novel features` which will bc pointed out hereinafter, for the transmission of the desired signals.

A. further object is the provision of an improved construction which insures of all the operating parts being returned to their proper relative positions Vwhen the box is reset after an alarm is sounded.

Other of the important objects and aims of the invention will appear herein-after in connection with the description of the acv companying drawings, in which is illustrated one embodiment of the invention.

In the drawings like parts in the several views have been given the same reference numerals.

by the arrows 4. Fig. is a front elevation of the working parts viewed as indicated by the arrow 5 in Fig. 2, with the door removed. Fig. 6 is a. fragmentary view showing certain of the parts of Fig. 3 in similar rear elevation but in diiierent operatingv position. Fig. 7 is a fragmentary view show.- ing certain of the parts of Fig. 5 in similar front elevation but in different operating position. Fig. 8 is a plan view of the operating mechanism. Fig. 9 is a horizontal section on the line 9--9 of Fig. 5 and looking in the direction indicated. Fig. 10 is a diagrammatic view of a system of wiring which may be used under certain conditions.

In Figs. 2 and 3 of the drawings, the base of the box or container 1 is provided with a C-shaped rib Q to form a channel 3 for the interior electrical connections, contact heads 4 on an insulated bridge piece 5 being provided to receive one end of such connections.

The door is shown at 6 and is hinged toV base l at 7 and provided with a locking means S. Apertures are formed at the top and bottom of the base for the reception of suitable conduit pipes 9 for the carrying oi wires into and out of said box.

The face of door 6 carries an indication Fire alarm and also. as shown at 10. the number of the box and has, horizontally hinged thereto at 11, a frame 12 provided with a rectangular opening 13 closed by a glass cover plate 14 secured in place by lugs 15 on the frame. This frame has a lip 16 on its upper edge having mounted therein a locking latch 17 for maintaining said frame in its closed position to causea push button rod 18, to be presently referred to, to be depressed and held when the door G is closed and the glass plate 14 intact, as hereinafter described. -The words Breakglass and Push-button` are also preferably indicated on the outer face of the cover, as Shown in Fig. '1.

Mounted upon the inside of door 6 is a frame comprising front and rear plates 2O and 21, respectively, secured together and paced apart'by studs Q2, Q2 and having' mounted therein a `clock train winding shaft 23, t0 which is connected the usual type of clock spring may-be 'fastened to one of the studs 22,

21 the `stationary end of which CIK Clt

Shaft 23 has a square end 23 projecting through an opening in the door 6 adapted to be engaged by the usual watchmans key to wind the spring 24.

Loosely mounted on shaft 23 (see Fig. 4) is a gear carrying a spring-pressed pawl 26 engaging a ratchet 27 liXed on the shaft 23. Gear 25 engages with a pinion 28 on a shaft 29 rotatably mounted in the frame plates 20 and 21.

The shaft 29 has mounted thereon a gear 30 engaging a pinion 31 on an idler shaft 32, also mounted in the plates 20 and 21. This shaft 32 also has mounted thereon a gear 33, associated, as shown, with a pallet escapement 34, pivotally mounted on shaft 35 and carrying a gravity governor or pendulum 36.

Upon shaft 29, at the rear of plate 21, (see Figs. 2 and 3), are mounted the break- "wheels, of which there are preferably three,

namely, a local alarm wheel, a central office fire alarm wheel and a watchmans signal wheel, numbered, respectively, 40, 41 and 42.

The above described arrangement provides a common motor mechanism for operating the different signal devices.

Break-wheel has associated therewith a brush 43 mounted on an insulated bracket 44 and comprising a pair of contacts 45 and 46. Break-wheel 41 has associated therewith a brush 47 mounted on insulated post 48 and including three contacts 49, 50 and 51. Break-wheel 42 has associated there- V with a brush 52 having three contacts, 53, 54

and\55, also mounted on said insulated post. Brushes 47 and 52 are of similar construction in every respect.

Fixed upon the opposite end of shaft 29 to that carrying the break-wheels (see Fig. 5) and in front of plate 20, is a disk 60 having thereon a stop-lug 61 adapted to engage a stop-lug 62 on a lever 63, which is pivotally mounted on plate 20 at 64 and is moved in one direction by means of a spring 65, attached at one end to the lever 63 and at its opposite end to a bracket 66, the engagement of the lugs normally preventing the spring 24 from rotating the break-wheels. The lever 63 has an odset arm 63 adapted to be engaged by a trip-dog 67, mounted on a sleeve 68 rigid upon the shaft 23, to throw the lugs 61 and 62 out of engagement at certain times.

The lower end of lever 63 is adapted to be engaged by a lug or stop-member 70 mounted on the rod 18 and which is movable on a guide pin 71 and normally projects into the path of travel of the lower end of the lever 63 and holds the same in the position shown in Fig. 5, with the lugs 61 and 62 in contact.

The rod 18 is slidably mounted in the frame plates 2O and 21 and is normally yieldingly pressed against the glass 14 by.

a coiled spring 72 encircling the rod 18 and bearing between the plate 21 and a collar 73 on the rod. In this position lever 63 is engaged by the lug 70, as shown in Fig. 5,

but when the glass 14 is broken therod 18,

and with it the lug 70, is moved to the dotted position shown in Fig. 2, the lever 63 is released land swung by its spring 65 to the position shown in dotted lines in Fig. 7, for a purpose hereinafter described. A stop 75 may be provided upon plate 20 to limit the movement of lever 63 by spring' 65.

Upon the rear end of winding shaft 2?) (see Fig. 3) is mounted contact controlling cam having a cam surface 81 extend,- ing for substantially one-sixth of a circle concentric with shaft 23 and terminating in a rise 82. Said cam 80 engages a contact arm 83, forming one of the members of a brush 84, mounted on an insulated bracket which is, in turn, mounted on the frame plate 21. Said brush 84 also includes contacts 86- and 87, the latter carrying an insulated cap 88. Carried by shaft 23 adjacent cam 80 is an arm 90 which is adapted to project into the path of a pin 91 carried by the hub of break-wheel 40 when the clock spring is completely run down in order to insure the break-wheels always coming to rest in the same position.,

Mounted on the rear end of rod 18 (see Fig. 9) is an insulated cap 95 engaging one arm of a rocker switch 96 which is pivotally mounted on a center contact bracket 97 on an insulated block 98 carried by plate 21. This rocker switch is normally set as shown in Fig. 9, that is, so as to connect only the center contact 97 and one side contact 100, with the other side contact 99 open, being retained from displacement'from such position by engagement of the end of rod 18 therewith. When the glass 14`is broken and rod 18 moved outwardly (by the spring 72), the rocker switch 96 is free to be moved to reverse its position, which may be accomplished by means of a reciprocating stud 101 which is mounted in the frame plates 20 andV 21 and encircled by a spring 102, said spring bearing between the plate 21 and a collar 103 fixed on the stud 101, normally holding the same in its outer position, shown in. Fig. 9, said stud having an oti'set guide arm 104 that slides on a fixed guide pin 105. Upon the front end of stud 101 is mounted a button 106 bearing the indication City fire alarms, as shown in Fig.' 1. In Fig. 5 this button is only indicated in dotted lines. The rear end of stud 101 is provided with an insulating cap 107 adapted to engage switch 96. Suitable openings may be provided in the face of the cover 6 to receive the rod 18 and stud 101, the glass 14 acting as a covering for such rod and stud when in place.

vThe interior mechanism described is suitably inclosed in a box or housing 108, which is'fastened to the inside of door 6.

The interior wiring lof the box (Fig. 3) includes conductors 110, 111 and 112 leading from thecenter and side contacts 97, 99 and 100 of the rocker switch 96 to the terminals 4. From contact 45 of brush 43 a conductor 113 leads to the contact 86 of brush 84. From contact 46 of brush 44 a pair 'of conductors 114 and 115 lead respectively to contact 83 of brush 84 andV one of the terminals '4. From contact 87 of brush 84 conductor 116 leads to remaining one of the terminals 4. The connectionsto the break-wheel brushes 47 and 52 may be made in the usual manner. circuit is preferably a normally closed circuit, the opening of which causes the alarm to sound..

In Fig. 10 an electrical circuit, which may be employed under certain conditions, is illustrated. This circuit comprises a conductor 120 leading from contact 55 of brush 52 to contact 51 of brush 47. A conductor 121 leading from contact 54 of brush 52 to contact 100 of the rocker switch. A conductor 122 leading from contact 50 of brush 47 to contact 99 of the rocker switch 96, and a shunt conductor 123 leading from a point on conductor 120 between the contacts 55 and 51 to the central contact 97 of the switch 96.

The clock train is preferably so arranged as to cause the break-wheels to make five complete revolutions while spring 24 is unbox being of the normally wound type and remaining, when in normal position, ready to be operated, with the spring `four-fifths wound up (the various parts being shown in this position in Figs. 2. 3, 4, 5, 6, 8 and 9) so that, upon release of the break-wheels to sound an alarm', the same will make four complete revolutions before coming to rest. The ratio between winding, the

gear 25 and pinion 28 is, for the reason hereinafter described, made six to one, so that shaft 23 rotates five-sixths of a complete turn while the clock Vtrain is being wound up or is running down.

The box is adapted for use, first, in turning in a watchmans signal to the office of a fire protection organization or to any desired point.

The operation is as follows: In giving A the watchmans signal the key is placed on -the square end of shaft 23 and the shaft rotated one sixth of a turn, further winding up spring 24. By reason of the ratchet and pawl connection between gear 25 and shaft 23, the gear will remain stationary during the winding ofthe spring and will commence rotating immediately shaft 23 is released by the watchman. In the drawings the direction of rotation of shafts `23 and 529 ,as the clock l-train is running down is as The local alarm' indicated by the arrows, shaft A23 rotating in an opposite direction during windingl Referring now to Figs. 5 and 7, it will be seen that as this additional sixth of a turn lin winding direction is being completed lug 67 on shaft 23 engages the arm 63 on lever 63 and moves the latter to the right, disen gaging lugs 61 and 62 and allowing shaft 29, and the break-wheels thereon, to commence revolving as soon as 'shaft 23 is released b'y the watchman. These wheels .revolve one complete turn while shaft 23 un winds one sixth of a turn and the required signal is sent in by the make and break of brush 52 with the watchmans break-wheel in the usual manner. Any suitable lco-acting means on the box and key may be provided to prevent the shaft being wound more than a sixth of a turn. Referring now to Figs. 3 and 6, it will be seen that whenshaft 23 is rotated the additional sixth of a turn, cam 8O rides under the curved end of con tact 83 and closes contacts 83 and 86. This establishes a shunt circuit across brush 43 (which engages the local alarm wheel 40) through conductor 116, contacts 83, 86 and 87, and.conductors 114-, and 115 and retains the local alarm circuit closed irrespective of the make and break caused by the wheel 40, thus preventing the local alarm from sounding as the wheel 40 revolves. As shaft 23 returns to normal position under the inliuence of spring 24, lever 63 is released and again assumes the position shown in Fig. 5 and lugs 61 and 62 rengage when the breakwheels have made one complete revolution, the parts coming to rest in the position previously occupied.

The above described operation may be repeated as often as desiredwitho-ut operating the alarm signals.

In order to conveniently test the local alarm circuit a special key may be placed on shaft 23 and the shaft rotated a fraction over a sixth of a turn, causing the rise 82 on cam 80 to engage and open contacts 86 and 87 thus opening the local alarm circuit. The watchmans signal will be also given as the spring unwinds uponthe return y.movement and the parts will come to rest as when the ordinary watchmans signal is given.

In case of fire, or any emergency requiring the sounding of the local lire alarm, glass 14, which acts as a restoring device to hold the local alarm signal means against operation, is broken, rod 18 is automatically moved out by spring 72, to the dotted position shown in Fig. 3, releasing lug fro-m lever 63 `and allowing the spring 65 to throw the latter to the position shown in dotted lines in Fig. 7, disengaging lugs 61 and 62 and allowing the spring '.24 to completely unwind and Yrotate the break-wheels four times and vsound the .local alarm, the parts coming to fiest in the position shown. .in

'llo

dotted lines in Figs. 6 and 7. In this position finger acts as a stop to pin 91 and insures the break-wheels coming to rest in the proper position. During the above described operation the watchmans signal is repeated four times, which will notify the protection company that a local alarm has sounded.

The breaking of the glass renders the city fire button 101 accessible and if it is desired to send in an alarm to city re headquarters this button 101 is pushed, after glass 14 is broken, opening contact 100 of rocker switch 97 and closing contact 99. This make and break will act to trip a city fire boX located on or near the premises and send the desired signal to the city lire department.

To reset the boX a new glass is inserted in frame 12, shaft 23 is rotated in the winding direction five-siXths of a turn (throwing lever 63 from the dotted position shown in Fig. 7 over to the right by engagement of arm 63 and dog 67) andy the frame 12 closed, moving rod 18 to its inner position. When the trip dog 67 releases the arm 63 the lever 63 will rengage with the lug 7 0 on rod 18 and remain in the position shown in Fig. 5. If the city fire button has been pushed, the closing of the glass and consequent movement of rod 18 will cause rocker switch 97 to be reset in normal position, shown in Fig. 9.

It will be obvious that the box cannot be reset until a new glass 14 has been inserted in frame 12 and the latter closed, nor can it be reset, after operation of the city fire alarm, without returning rocker switch 97 to normal position and cutting out the city fire alarm circuit.

The central oflice fire alarm wheel 41 is utilized when the wiring system shown in Fig. 10 is employed. With this system a shunt is normally established across the central office fire alarm wheel through conductors 121, contacts 54 and 55, conductors 120 and 123 and one arm of switch 96, the break-wheel 41 being thus rendered inoperative. If the button 106 is pushed after the glass is broken, switch 96 is reversed, bringing the central oflice fire alarm wheel 4:1 into the circuit and shunting out the watchmans wheel 42. With this system suitable conductors lead from contacts 99 and 110 of switch 96 to a signal device in the office of the re protection organization or any place where it is desired to give the signal, the usual conductors leading from switch 96 to a city fire alarm boX being dispensed with.

As many changes could be made in the above construction and many apparently widely different embodiments of our invention designed without departing from the scope of. ther appended claims, we intend that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative merely of an operative embodiment of our invention and not in a limiting sense.

That we claim is:

1. 1n a device of the class described, in combination, means operativo automatically when released for sending two separate alarms, means normally holding said means inoperative but adapted to release the same, said last named means also rendering accessible other means for sending a third and different alarm, and means operative only when rendered accessible by said last named means for sending a third and different alarm.

2. In a device of the class described, in combination, a pair of signal devices, a common motor mechanism for said. devices, such motor mechanism being adapted to operate from position to cause one signal to be operated a predetermined number of times, means whereby said motor mechanism may be caused to operate from a different position and come to rest in the first mentioned position to cause the other signal to be operated, and means whereby the first signal is rendered inoperative when the motor mechanism is operated from the last mentioned position.

3. In a device of the class described, in combination, a frame, a shaft mounted in said frame, a watchmans signal breakwheel and a local alarm break-wheel upon said shaft, means for rotating said shaft a predetermined number of times, means adapted to normally position said shaft ro- Vtating means to rotate the shaft less than the full number of times, signal operating means in connection with said local alarm breakwheel, means for moving said shaft rotating means from its said normal position to another position to rotate the shaft the full number of times, signal operating means in connection with said watchmans signal break-wheel adapted to operate upon rotation of said shaft while the shaft rotating means is returning to its normal position, and means for rendering the localV alarm sign al means inoperative while said shaft rotating means is returning to normal position.

1l. In a device of the class described, in combination, a frame, a break-wheel shaft mounted in said frame, a plurality of breakwheels mounted upon said shaft, a spring for rotating said shaft, a winding shaft for said spring, a lever pivoted on the frame, a pair of cooperating stop-lugs carried by said lever and break-wheel shaft adapted to hold the latter against rotation, a spring adapted to move the lever in one direction, a releasable stop-member holding the` lever againstv the action (af-.said springA imposition with said stop-lugs engaged, said spring being adapted to move said lever to disengage said stop-lugs when said releasable stop-member is removed, and a member carried by the winding shaft and adapted tomove the lever away fro'ni said releasable stop-member against the action of said last mentioned spring to disengage the stop-lugs and release the break-wheel shaft.

5. yIn a device of the class described, in combination, a'f'rame, a break-wheel shaft mounted in said frame, a watchmans signal break-wheel and a Vlocal alarm break-wheel upon said shaft, spring means forrotating said shaft, a winding shaft for said spring means, signal operating vmeans in connection with each ,of said break-wheels, a pair of contact members electricallyhconnected with the local Valarm signal operating means, a lever pivoted on the fra-me, cooperating stoplugs upon said lever and break-wheel shaft whereby the latteris held against rotation, a member operated by the winding shaft and adapted to move the lever and disengage the stop-lugs and release the breakwheel shaft, and second member operated by the said winding shaft and adapted to operate 4the said `contacts to render the local lalarm signal means inoperative. i

6. In a device of the class described, in combination, a box, a removable cover member, a shaft rotatably mounted within the box, a watclimans signal break-wheel and a local alarm break-wheel upon said shaft, means for rotating rsaid shaft a predetermined number of times, means adapted to normally position and hold said shaft rotating means in position to rotate v the shaft less than the full number of times, said last namedv means including a movable member engaging Vand heldin its operative position by the said cover, signal operating means in connection withthe local ,alarm break-wheel, means for moving said vshaft rotating means from its said normal position :to another position torotate the Vshaft ,the full number of times, Asignal operating means in connection with ,the watchmans signal break-wheel adapted to operate upon lrotation of said shaft while the shaft rotating means is returning to its normal position, and means adapted to move the said engaging lmember upon the removal of said ,cover member from its operative position to release the shaft operating'means, and means for rendering thelocal alarm signal means inoperative whilesaid -shaft rotating means is returning to `normal position.

7. In aA device ofV the `class described, in combination, a box, a removable cover member, a shaft, a break-wheel upon said shaft, signal operating Ameans connection with said break-wheel, ,means for rotating said shaft,a rod slidably mounted in the box, a lever, aspring adapted to move said lever in one direction, a lug upon the rod adapted to engage and hold said lever vagainst movenient by said spring, a pair of coperating stop-lugs carried bythe lever and said shaft whereby the latter is held against rotation when the lever is engaged by the lug upon said rod, and a spring normally holding said rod against said cover and adapted upon re` moval of the cover to `automatically move the rod and lug out of engagement with the lever to allow the latter to be movedy by its spring to disengage the said coperating lugs and allow the shaft and signal means to operate. i

8'. In a device of the class described, in combination, a'boX, a removable cover member, local alarml signal means, operating mechanism therefor'normally in condition to function, a member normally engaged by the said cover, means effecting a connection between said member and operating mechaf nism whereby the latter is retained against operation when said cover is in place, means whereby said member is caused to move upon removal of the said cover to releasefthe said connection, a switch normally ,retained vin one position by said member when said cover is in place and released by the removal thereof and resulting movement of said vmember, alarm signal connections leading from said switch, and a second member protected by the said cover and adapted to be manually operated only upon removal yof lthe said cover to reverse the said switch, for the purpose set'forth.

9. In a device of the class described, in combination, a box, a removable cover meniber, a shaft, a break-wheel upon said shaft, signal operating means in connection with said break-wheel, means for rotating said shaft, a rod slidably mounted in the box, a lever, a spring adapted to move :the lever in one direction, a lug upon the rod holding the lever `against movement by said spring, a pair of cooperating stop-lugs carried by the lever andthe said shaft whereby the latter is held against rotation when they lever is engaged by the lug upon the rod, a spring normally holding said rod against said cover and adapted to4 slide the same outwardly upon the removal of said cover, a switch adapted to be retained in one closed position by ,the said rod when the said cover is in -l place, alarm -signal connections leading from said switch, and a second rofd slidabl'ymounted within the box andV protectedv by the said lcoverland adapted to be manually operated only upon removalof the said cover to reverse the said switch, for the purpose set forth.

ico

10. 4In a device of the class described, in i combination, afboX, a removable cover inember, local Aalarm signal means, operating mechanism ,therefor normally in condition to `function a member normali Ven aged and Y' held by said cover, means effecting a connection between said member and operating mechanism whereby the latter is retained against operation when the said cover is in place, means whereby said member is caused to move upon removal of the said cover to release the said connection, a switch adapted to be retained in one position by the said member when the said cover is in place, alarm signal connections leading from said switch, and a second member protected by the said cover and adapted to be manually operated only upon removal of the said cover to reverse the position of said switch.

kl1. In a device of the class described, in combination, a box, a removable cover member, a break-wheel shaft within the box, spring means for rotating said shaft, a winding shaft for said spring means, a local alarm break-wheel and a watchmans signal break-wheel upon said brealrwheel shaft, signal operating means in connection with each of said break-wheels, a pair of contact members located adjacent said winding shaft, electrical connections between said contact members and the local alarm signal operating means, a member upon the winding shaft adapted to engage said contacts, a lever, a spring adapted to move said lever in one direction, a pair of cooperating stopvlugs carried by said lever and said breakwheel shaft, a rod slidably mounted in said box, a lug upon said rod engaging said lever and retaining said cooperating stop-lugs in engagement when the cover is in place, a spring normally pressing said rod outwardly against the said cover and adapted to move said rod to disengage said lug and lever when said cover is removed, a lug upon the winding shaft adapt-ed to engage and move said lever to disengage said coperating lugs irrespective of the position of the lug upon said rod, a switch adapted to be re-V tained in one closed position by the said rod when said cover is in place and to release thesame upon the removal of the cover, alarm signal connections leading from said switch, and a second rod slidably mounted within the box and protected by the said cover-and adapted to be manually operated only upon removal of said cover to reverse the said switch.

12. In a device of the class described, in combination, a frame, a shaft mounted in said frame, a watchmans signal breale Wheel and a local alarm break-Wheel upon said shaft, signal operating means in connection with each of said break-Wheels, spring means for rotating said shaft, a winding shaft for said spring means, a three contact brush mounted on said frame, electrical connections between said brush and the local alarm signal operating means, and a member operated by said winding shaft and adapted upon winding of the shaft to a predetermined position to act upon said c0n tacts to render the local alarm signal means inoperative and upon further winding to operate upon said contacts to test said local alarm signal means.

13. In a device of the class described, in combination, a pair of signal devices, a com mon motor mechanism for said devices, each of said devices being normally in position to operate when such motor mechanism operates and such motor mechanism being adapted to operate from one position to cause one signal to be operated a predetermined number of times, means whereby said motor mechanism may be caused to operate from a different position and come to rest in the first mentioned position to cause the other signal to be operated, and means whereby the first signal is rendered inoperative when the motor mechanism is operated from the last mentioned position.

14. In a device of the class described, in combination, a frame, a shaft mounted in said frame, a watchmans signal break-wheel and a local alarm break-wheel upon said shaft, means for rotating said shaft a predetermined number of times, means adapted to normally position said shaft rotating means to rotate the shaft less than the full number of times, signal operating means in connection with said local alarm breakwheel, means for moving said shaft rotating means from its said normal position to another position to rotate the shaft the full number of times, signal operating means in connection with said watchmans signal break-wheel adapted to operate upon rotation of said shaft while the shaft rotating means is returning to its normal position, and means adapted to be operated by movement of said shaft rotating means from its normal position to position to rotate the shaft the full number of times for rendering the local alarm signal means inoperative while said shaft rotating means is returning to normal position.`

15. In a device of the class described, in.

combination, a box, a removable cover member, a shaft rotatably mounted within the boX, a watchmans signal break-wheel and a local alarm break-wheel upon said shaft, means for lrotating said shaft a predetermined number of times, means adapted to normally position and hold said shaft rotati ing means in position to rotate the shaft less than the full number of times, said last named means including a movable member engaging and held in its operative position by the said cover, signal operating means in connection with the local alarm break-wheel., means for moving said shaft rotating means from its said normal position to another position to rotate the shaft the full number of times, signal operating means in connection with the watchmans signal break-wheel adapted to operate upon rotation of said Shaft While the shaft rotating means is returning to its normal position, and means adapted to move the said engaging member upon the removal of said cover member from its voperative position to release the shaft operating means, and means adapted to be operated by movement of said shaft rotating means from its normal position to rotate the shaft the full number of times for rendering the local alarm signal means in- JOSEPH SIDDALL. WILLIAM H. SIDDALL.

Vitnesses:

E. E. HAINES, D. E. RICH.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C. 

